How to balance zone 2 endurance and high-intensity work on 8 hours a week. Seiler's 80/20 split, why the third hour matters, and when rest days actually help.
36:06 ·
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How to balance zone 2 endurance and high-intensity work on 8 hours a week. Seiler's 80/20 split, why the third hour matters, and when rest days actually help.
36:06 ·